Clinton, Trump remain front-runners for respective nominations
Experts say it's unlikely GOP frontrunner could make good on pledge
Presidential candidates drive national discussion to new lows
'Empire' star says GOP candidate has 'store bought intelligence'
Five states up for grabs on major primary night
Five states up for grabs on 'Mini-Tuesday'
Rubio tops Kasich by one point in ‘primary;’ Trump finishes third
Florida senator received 37 percent of the vote
GOP stands to lose Senate, even House, if Trump is nominee
The danger of losing our social filters
